632 



STUDIES IN AUSTRALIAN ENTOMOLOGY. 



No. X. 



Description of a new Tiger Beetle from Western Australia. 



By Thomas G. Sloane. 



Tetbacha greyanus, ii. sp. 



Stout, cylindrical, parallel-oval, apterous. Prothorax with a 

 lateral carina on anterior part of sides; elytra subtruncate, 

 strongly and roughly punctate towards base, smooth (with 

 very minute punctures in derm) towards apex, the smooth apical 

 part with a discoidal row (4 or 5) of fine punctures, a submarginal 

 row (3) on sides and a marginal row along apex. 



Upper surface metallic; elytra green on punctate part, becoming- 

 bluish on smooth apical part; prothorax green, with middle of disc, 

 middle of anterior margin, and a small spot at middle of basal 

 margin bluish-black; head green, middle of front and occiput 

 bluish-black; underparts of prothorax green, bluish in middle; 

 sides of -body and anterior ventral segments greenish, middle parts 

 piceous, two penultimate ventral segments piceous-black with 

 narrow brown posterior margin, penultimate segment subtestaceous 

 at sides, apical segment piceous with wide testaceous margin; 

 legs, palpi and antennae pale testaceous, five apical joints of 

 antennae slightly infuscate ; labrum testaceous with anterior 

 margin infuscate; mandibles testaceous at base, teeth and apex 

 piceous. 



Prothorax a little wider than head with eyes, broader than 

 long (4-5 x 5*2 mm.), subcordate (apex 5, base 4 # 1 mm.); disc very 

 convex, decidedly raised above apical area, and very strongly 

 above basal area; anterior transverse impression very deep on 

 sides, curving forward on each side towards anterior angles; 



